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    GENERALIZED ASYMMETRIC POWER ARCH MODELING OF NATIONAL STOCK MARKET RETURNS by Mert URAL

    Published 2009-12-01
    “…Bu çalışmada, sekiz ülkenin ulusal borsa endeks getirilerinde (Nasdaq100, DAX, Nikkei225, Strait Times, MerVal, IPC, Shanghai Composite and ISE100) farklı hata dağılımlarına bağlı olarak oynaklık yapılarını belirlemek üzere Ding, Granger and Engle (1993) tarafından ileri sürülen Genelleştirilmiş Asimetrik Üslü ARCH (APGARCH) modelinin uygulanabilirliği araştırılmıştır. …”
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    Virtualization security:the good,the bad and the ugly by Yu-tao LIU, Hai-bo CHEN

    Published 2016-10-01
    “…The virtualization security has increasingly drawn widespread attention with the spread of cloud computing in recent years.Thanks to another level of indirection,virtualization can provide stronger isolation mechanisms,as well as bottom-up security services for upper-level software.On the other side,the extra indirection brings complexity and overhead as well,which poses huge challenges.A series of recent representative work done by the institute of parallel and distributed system shanghai jiaotong university,including providing security services of trusted execution environment,virtual machine monitoring,intra-domain isolation,as well as optimizing trusted computing base and cross-world calls in the virtualization environment.Finally the problems and directions in the space of virtualization security were summarized.…”
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  18. 4258

    The impact of teacher support on OLE in RFL learners: The chain mediating roles of classroom enjoyment and motivation by Yuejiao Li

    Published 2025-02-01
    “…A structured survey was administered to students from Hefei University of Technology, Shanghai International Studies University, and Southwest University of Science and Technology, measuring teacher support, motivation, classroom enjoyment, and OLE in online Russian classes. …”
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  19. 4259

    Forecasting Volatility with Time-Varying Coefficient Regressions by Qifeng Zhu, Miman You, Shan Wu

    Published 2020-01-01
    “…We extend the heterogeneous autoregressive- (HAR-) type models by explicitly considering the time variation of coefficients in a Bayesian framework and comprehensively comparing the performances of these time-varying coefficient models and constant coefficient models in forecasting the volatility of the Shanghai Stock Exchange Composite Index (SSEC). The empirical results suggest that time-varying coefficient models do generate more accurate out-of-sample forecasts than the corresponding constant coefficient models. …”
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  20. 4260

    Differences in the Values of the Senior Management Team, Antirisk Ability, and Innovation Performance by the Data-Driven Approach: Evidence from 841 Listed Companies in China by Guangyin Tong

    Published 2021-01-01
    “…The data are from China’s Shanghai and Shenzhen A-share listed companies from 2013 to 2018. …”
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